268872823 has 2 divisors, whose sum is σ = 268872824. Its totient is φ = 268872822.

The previous prime is 268872803. The next prime is 268872841. The reversal of 268872823 is 328278862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 268872823 - 2²¹ = 266775671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268872803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134436411 + 134436412.

It is an arithmetic number, because the mean of its divisors is an integer number (134436412).

Almost surely, 2^268872823 is an apocalyptic number.

268872823 is a deficient number, since it is larger than the sum of its proper divisors (1).

268872823 is an equidigital number, since it uses as much as digits as its factorization.

268872823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 516096, while the sum is 46.

The square root of 268872823 is about 16397.3419492307. The cubic root of 268872823 is about 645.4297342557.

The spelling of 268872823 in words is "two hundred sixty-eight million, eight hundred seventy-two thousand, eight hundred twenty-three".